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Using goal programming in formulating rations for pregnant ewes

Published online by Cambridge University Press:  02 September 2010

Heather D. St C. Neal ,
J. France  and
T. T. Treacher
Heather D. St C. Neal
Affiliation:
Animal and Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 5LR
J. France
Affiliation:
Animal and Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 5LR
T. T. Treacher
Affiliation:
Animal and Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 5LR
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Abstract

Models are described which utilize goal programming to maximize hay intake in the formulation of rations for ewes in the last 6 weeks of pregnancy. By treating the energy or protein allowances (or both) as goals rather than restrictions, rations in addition to the linear programming (LP) optimal solution are generated. The approach offers a flexible alternative to the standard LP approach by providing additional rations with known deviations from the allowances. A set of guidelines is given to determine which of these rations could be tolerated when the nutritional requirements cannot be satisfied.

Information

Type
Research Article
Information
Animal Production , Volume 42 , Issue 1 , February 1986 , pp. 97 - 104
Copyright
Copyright © British Society of Animal Science 1986

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References

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